#include<bits/stdc++.h>
#define y1 Y1
#define fi first
#define endl "\n"
#define se second
#define PI acos(-1)
#define int long long
#define pb(x) push_back(x)
#define PII pair<int, int>
#define Yes cout << "Yes\n";
#define No cout << "No\n";
#define YES cout << "YES\n";
#define NO cout << "NO\n";
#define _for(i, a, b) for(int i = a; i <= b; ++i)
#define IOS ios::sync_with_stdio(false),cin.tie(0),cout.tie(0)
using namespace std;

const int N = 2e5 + 10;
int a[N];
int n, m;
string s[6];

signed main() {
	IOS;
	for(int i = 1; i <= 5; ++ i ) {
		getline(cin, s[i]);
	//	cout << s[i] << endl; 
	}
	if(s[3][5] == '&') {
		int A = s[2][0] - '0';
		int B = s[4][0] - '0';
		cout << (A & B) << endl;
	} else if (s[3][5] == '='){
		int A = s[2][0] - '0';
		int B = s[4][0] - '0';
		cout << (A | B) << endl;
	} else {
		cout << (s[3][0] == '1' ? '0' : '1') << endl;
	}
	return 0;
}

